Thanks for the info re: electric cars. I shared it with my brother, who is very critical of their production (especially the environmental cost of the batteries) I think rather than "Meatless Mondays" I'd advocate something much like what you do - maybe 40/60 meat and vegetarian, with a focus on using all of the animal, not just the prime and choice cuts. Eat some Beef Heart or something, y'know?
"Focus on all of the animal" is really a different problem altogether. Machine-scale agriculture works on the premise of packing plants that take chicken specifically bread for giant breasts and tiny wings and thighs that then separate out everything and send it to other places to be used for different purposes. Economies of scale would dictate that having a giant Tyson factory distribute Foghorn Leghorn is going to be more efficient than you doing it; after all, you may or may not have a use for a chicken beak but there may well be someone out there who can use a truckload of chicken beaks. I wholeheartedly recommend the book The End of Food by Paul Roberts; it's a thought-provoking and in-depth exploration of the externalities of modern agriculture. Bill McKibben's Eaarth touches on similar problems; McKibben describes his attempts to get his local restaurants to use locally sourced bacon, which doesn't exist, because without the massive economies of scale brought by megafarms, bacon can't be produced for less than $9/lb.